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#pragma once
#include <cstdint>
#include <cstddef>
#include <tuple>
#include <string>
#include <iostream>
namespace OpenVic2 {
//A relative period between points in time, measured in days
struct Timespan {
int64_t days;
Timespan() : days(0) {}
Timespan(int64_t const& value) : days(value) {}
bool operator< (Timespan const& other) const;
bool operator> (Timespan const& other) const;
bool operator<= (Timespan const& other) const;
bool operator>= (Timespan const& other) const;
bool operator== (Timespan const& other) const;
bool operator!= (Timespan const& other) const;
Timespan operator+ (Timespan const& other) const;
Timespan operator- (Timespan const& other) const;
Timespan operator* (int64_t const& factor) const;
Timespan operator/ (int64_t const& factor) const;
Timespan& operator+= (Timespan const& other);
Timespan& operator-= (Timespan const& other);
};
static constexpr size_t MONTHS_IN_YEAR = 12;
static constexpr size_t DAYS_IN_YEAR = 365;
static constexpr size_t DAYS_IN_MONTH[MONTHS_IN_YEAR] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
using date_t = uint8_t;
using month_t = uint8_t;
using year_t = uint16_t;
using YearMonthDayBundle = std::tuple<year_t, month_t, date_t>;
//Represents an in-game date
//Note: Current implementation does not account for leap-years, or dates before Year 0
struct Date {
private:
YearMonthDayBundle gregorianDate;
//Number of days since Jan 1st, Year 0
Timespan ts;
public:
//The Timespan is considered to be the number of days since Jan 1st, Year 0
Date(Timespan const& timespan);
//Year month day specification
Date(year_t year = 1836, month_t month = 1, date_t day = 1);
private:
void updateDate(Timespan const& timespan);
public:
size_t getDay() const;
size_t getMonth() const;
size_t getYear() const;
bool operator< (Date const& other) const;
bool operator> (Date const& other) const;
bool operator<= (Date const& other) const;
bool operator>= (Date const& other) const;
bool operator== (Date const& other) const;
bool operator!= (Date const& other) const;
Date operator+ (Timespan timespan) const;
Timespan operator- (Date const& other) const;
Date& operator+= (Timespan const& timespan);
Date& operator-= (Timespan const& timespan);
//Postfix increment
Date operator++ (int);
explicit operator std::string() const;
friend std::ostream& operator<< (std::ostream& out, Date const& date);
};
}
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